The Quarterly journal of the Geological Society of London . edson. Ambeeleta Htjdlestoni, sp. nov. (Fig. 6.) Eoad-section, Midford, near Bath (Somerset).H. Upper Coral-Bed, \. L. Richardson. Diagnosis. Fig. 6.—Amberleya Hudle-stonei, sp. nov. {Naturalsize.) Shell turbinate, rotund, turrited; whorls more con-vex than is usual in the Amberleya-group. The ornaments consist offive to six granulated spirals: thefirst or uppermost (that nearest theposterior suture) being the finest,and the third and fourth the mostprominent; while the sixth onlymakes its appearance on
The Quarterly journal of the Geological Society of London . edson. Ambeeleta Htjdlestoni, sp. nov. (Fig. 6.) Eoad-section, Midford, near Bath (Somerset).H. Upper Coral-Bed, \. L. Richardson. Diagnosis. Fig. 6.—Amberleya Hudle-stonei, sp. nov. {Naturalsize.) Shell turbinate, rotund, turrited; whorls more con-vex than is usual in the Amberleya-group. The ornaments consist offive to six granulated spirals: thefirst or uppermost (that nearest theposterior suture) being the finest,and the third and fourth the mostprominent; while the sixth onlymakes its appearance on the pen-ultimate whorl (just before the com-mencement of the body-whorl) as athin thread like that nearest theposterior suture. There are sevenor eight finely-granulated spirals onthe base—the granulations on all thespiral lines being produced by thenumerous transverse lineee. Theaperture is subcircular. Remarks.—This specimen wassubmitted to Mr. W. H. Hudleston,who wrote:—This is too rotund and highly-ornamented for the typical Amberleya Proc. Cotteswold Nat, vol. xiii (1899-1901) pi. xiii, figs, ba-bc. Yol. 63.] AMBERLEYA AND SPIRORBIS. 435 I do not seem to have figured anything exactly corresponding to this formfrom the Inferior Oolite. It differs from the Duudry type, and might almostconstitute a distinct species. I dedicate this species to Mr. Hudleston, who has contributed somaterially to our knowledge of the Inferior-Oolite Gasteropoda ofthis countr}T. I have also collected this species from the bottom-beds of theClypeus-Grit of Rodborough Hill, near Stroud. Spirorbis midfordensis, sp. nov. (Fig. 7.) Eoad-section, Midford, near Upper L. Kichardson. Diagnosis.—Tube minute, twice spirally enrolled ; flat on the side by which it was attached ;Fig. 7.—Spirorbis midfordensis, externally ornamented withsp. nov. {Magnified about wavv longitudinal linea3 (which15 diameters.) are 0ften worn off, leaving the /
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Keywords: ., bookcentury1800, bookdecade1840, bookidquarte, booksubjectgeology
